Main > Monitor/Video Forum
Idea: customized videocard BIOS
wpcmame:
--- Quote from: Silver on March 11, 2005, 06:10:49 am ---Thanks for the feedback. I am slightly confused when you say only use 1 modeline format. I thought the main advantage of Advancemame is that it will generate custom modelines for each game for perfect emulation....
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There is a difference between a modeline and modeline format. Advmame generates modelines for each game based on the modeline format.
The modeline format describes how much of each line that is visible on the monitor and how long time that required for sync, retrace and blanking.
Unfortunatly these properties are expressed as fractions of the line length and not in microseconds so the same modeline format will not work for 25KHz where each line is 40us and 15KHz where each line is 64us.
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Silver:
ah so modeline format is the same as Advancemames device_video_format....
Thanks for clearing that up.
Although if I have a multisync monitor over the range 15-31Khz, I presumably will still need multiple modeline formats? Or am I still missing something?
desmatic:
--- Quote from: Silver on March 11, 2005, 07:42:52 am ---ah so modeline format is the same as Advancemames device_video_format....
Thanks for clearing that up.
Although if I have a multisync monitor over the range 15-31Khz, I presumably will still need multiple modeline formats? Or am I still missing something?
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It's a bit more complicated than that.
Silver:
Thanks for the great explanation - I'm pretty handy with tv signals (mainly pal/ntsc) and monitor stuff but the modeline understanding had eluded me....
Much appreciated.